./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_srvr.blast.04.i.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.04.i.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ff34e80d9f0f73b7bbd7bbe2f389b5cf58f461c ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.04.i.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ff34e80d9f0f73b7bbd7bbe2f389b5cf58f461c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:04:59,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:04:59,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:04:59,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:04:59,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:04:59,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:04:59,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:04:59,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:04:59,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:04:59,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:04:59,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:04:59,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:04:59,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:04:59,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:04:59,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:04:59,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:04:59,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:04:59,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:04:59,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:04:59,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:04:59,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:04:59,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:04:59,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:04:59,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:04:59,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:04:59,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:04:59,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:04:59,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:04:59,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:04:59,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:04:59,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:04:59,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:04:59,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:04:59,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:04:59,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:04:59,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:04:59,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:04:59,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:04:59,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:04:59,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:04:59,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:04:59,770 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:04:59,802 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:04:59,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:04:59,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:04:59,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:04:59,816 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:04:59,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:04:59,816 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:04:59,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:04:59,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:04:59,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:04:59,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:04:59,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:04:59,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:04:59,819 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:04:59,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:04:59,820 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:04:59,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:04:59,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:04:59,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:04:59,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:04:59,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:04:59,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:04:59,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:04:59,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:04:59,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:04:59,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:04:59,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:04:59,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:04:59,823 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:04:59,823 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ff34e80d9f0f73b7bbd7bbe2f389b5cf58f461c [2020-11-30 00:05:00,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:05:00,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:05:00,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:05:00,172 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:05:00,180 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:05:00,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/../../sv-benchmarks/c/openssl/s3_srvr.blast.04.i.cil.c [2020-11-30 00:05:00,272 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/data/387f5e70c/ddb275a92092494a89d6befbd3e195cc/FLAGc32709a48 [2020-11-30 00:05:01,045 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:05:01,049 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/sv-benchmarks/c/openssl/s3_srvr.blast.04.i.cil.c [2020-11-30 00:05:01,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/data/387f5e70c/ddb275a92092494a89d6befbd3e195cc/FLAGc32709a48 [2020-11-30 00:05:01,205 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/data/387f5e70c/ddb275a92092494a89d6befbd3e195cc [2020-11-30 00:05:01,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:05:01,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:05:01,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:05:01,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:05:01,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:05:01,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:05:01" (1/1) ... [2020-11-30 00:05:01,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658e379c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:01, skipping insertion in model container [2020-11-30 00:05:01,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:05:01" (1/1) ... [2020-11-30 00:05:01,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:05:01,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:05:01,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:05:01,820 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:05:02,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:05:02,042 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:05:02,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:02 WrapperNode [2020-11-30 00:05:02,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:05:02,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:05:02,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:05:02,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:05:02,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:02" (1/1) ... [2020-11-30 00:05:02,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:02" (1/1) ... [2020-11-30 00:05:02,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:05:02,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:05:02,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:05:02,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:05:02,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:02" (1/1) ... [2020-11-30 00:05:02,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:02" (1/1) ... [2020-11-30 00:05:02,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:02" (1/1) ... [2020-11-30 00:05:02,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:02" (1/1) ... [2020-11-30 00:05:02,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:02" (1/1) ... [2020-11-30 00:05:02,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:02" (1/1) ... [2020-11-30 00:05:02,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:02" (1/1) ... [2020-11-30 00:05:02,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:05:02,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:05:02,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:05:02,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:05:02,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:05:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 00:05:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:05:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:05:02,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:05:02,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 00:05:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:05:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:05:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:05:02,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:05:02,800 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 00:05:03,956 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-11-30 00:05:03,956 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-11-30 00:05:03,971 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:05:03,971 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:05:03,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:05:03 BoogieIcfgContainer [2020-11-30 00:05:03,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:05:03,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:05:03,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:05:03,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:05:03,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:05:01" (1/3) ... [2020-11-30 00:05:03,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11fd9530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:05:03, skipping insertion in model container [2020-11-30 00:05:03,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:02" (2/3) ... [2020-11-30 00:05:03,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11fd9530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:05:03, skipping insertion in model container [2020-11-30 00:05:03,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:05:03" (3/3) ... [2020-11-30 00:05:03,986 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.04.i.cil.c [2020-11-30 00:05:04,007 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:05:04,013 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:05:04,025 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:05:04,075 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:05:04,076 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:05:04,077 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:05:04,077 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:05:04,077 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:05:04,078 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:05:04,078 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:05:04,078 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:05:04,101 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-11-30 00:05:04,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-30 00:05:04,120 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:04,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:04,122 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:04,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:04,130 INFO L82 PathProgramCache]: Analyzing trace with hash 522836684, now seen corresponding path program 1 times [2020-11-30 00:05:04,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:04,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215341605] [2020-11-30 00:05:04,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:04,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:04,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215341605] [2020-11-30 00:05:04,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:04,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:04,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503198047] [2020-11-30 00:05:04,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:04,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:04,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:04,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:04,752 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 4 states. [2020-11-30 00:05:05,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:05,516 INFO L93 Difference]: Finished difference Result 314 states and 528 transitions. [2020-11-30 00:05:05,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:05,518 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-11-30 00:05:05,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:05,544 INFO L225 Difference]: With dead ends: 314 [2020-11-30 00:05:05,546 INFO L226 Difference]: Without dead ends: 158 [2020-11-30 00:05:05,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:05,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-11-30 00:05:05,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 141. [2020-11-30 00:05:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-30 00:05:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 216 transitions. [2020-11-30 00:05:05,644 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 216 transitions. Word has length 45 [2020-11-30 00:05:05,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:05,644 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 216 transitions. [2020-11-30 00:05:05,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:05,645 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 216 transitions. [2020-11-30 00:05:05,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-30 00:05:05,654 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:05,654 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:05,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:05:05,655 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:05,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:05,659 INFO L82 PathProgramCache]: Analyzing trace with hash 968097209, now seen corresponding path program 1 times [2020-11-30 00:05:05,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:05,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429696919] [2020-11-30 00:05:05,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:05,848 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:05,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429696919] [2020-11-30 00:05:05,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:05,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:05,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410283256] [2020-11-30 00:05:05,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:05,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:05,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:05,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:05,853 INFO L87 Difference]: Start difference. First operand 141 states and 216 transitions. Second operand 4 states. [2020-11-30 00:05:06,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:06,422 INFO L93 Difference]: Finished difference Result 280 states and 423 transitions. [2020-11-30 00:05:06,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:06,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-11-30 00:05:06,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:06,425 INFO L225 Difference]: With dead ends: 280 [2020-11-30 00:05:06,425 INFO L226 Difference]: Without dead ends: 158 [2020-11-30 00:05:06,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:06,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-11-30 00:05:06,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 141. [2020-11-30 00:05:06,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-30 00:05:06,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 215 transitions. [2020-11-30 00:05:06,447 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 215 transitions. Word has length 58 [2020-11-30 00:05:06,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:06,447 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 215 transitions. [2020-11-30 00:05:06,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:06,448 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 215 transitions. [2020-11-30 00:05:06,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-30 00:05:06,450 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:06,451 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:06,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:05:06,451 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:06,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:06,452 INFO L82 PathProgramCache]: Analyzing trace with hash -461266997, now seen corresponding path program 1 times [2020-11-30 00:05:06,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:06,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909713267] [2020-11-30 00:05:06,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:06,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909713267] [2020-11-30 00:05:06,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:06,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:06,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774450960] [2020-11-30 00:05:06,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:06,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:06,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:06,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:06,604 INFO L87 Difference]: Start difference. First operand 141 states and 215 transitions. Second operand 4 states. [2020-11-30 00:05:07,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:07,192 INFO L93 Difference]: Finished difference Result 279 states and 421 transitions. [2020-11-30 00:05:07,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:07,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-11-30 00:05:07,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:07,195 INFO L225 Difference]: With dead ends: 279 [2020-11-30 00:05:07,195 INFO L226 Difference]: Without dead ends: 157 [2020-11-30 00:05:07,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:07,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-11-30 00:05:07,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 141. [2020-11-30 00:05:07,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-30 00:05:07,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 214 transitions. [2020-11-30 00:05:07,211 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 214 transitions. Word has length 59 [2020-11-30 00:05:07,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:07,212 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 214 transitions. [2020-11-30 00:05:07,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:07,213 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 214 transitions. [2020-11-30 00:05:07,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-30 00:05:07,217 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:07,217 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:07,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:05:07,218 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:07,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:07,218 INFO L82 PathProgramCache]: Analyzing trace with hash 881926454, now seen corresponding path program 1 times [2020-11-30 00:05:07,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:07,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693794299] [2020-11-30 00:05:07,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:07,344 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:07,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693794299] [2020-11-30 00:05:07,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:07,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:07,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327257047] [2020-11-30 00:05:07,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:07,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:07,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:07,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:07,348 INFO L87 Difference]: Start difference. First operand 141 states and 214 transitions. Second operand 4 states. [2020-11-30 00:05:07,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:07,856 INFO L93 Difference]: Finished difference Result 277 states and 418 transitions. [2020-11-30 00:05:07,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:07,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-11-30 00:05:07,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:07,858 INFO L225 Difference]: With dead ends: 277 [2020-11-30 00:05:07,858 INFO L226 Difference]: Without dead ends: 155 [2020-11-30 00:05:07,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:07,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-11-30 00:05:07,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 141. [2020-11-30 00:05:07,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-30 00:05:07,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 213 transitions. [2020-11-30 00:05:07,874 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 213 transitions. Word has length 59 [2020-11-30 00:05:07,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:07,875 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 213 transitions. [2020-11-30 00:05:07,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:07,875 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 213 transitions. [2020-11-30 00:05:07,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-30 00:05:07,876 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:07,877 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:07,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:05:07,877 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:07,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:07,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1831274614, now seen corresponding path program 1 times [2020-11-30 00:05:07,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:07,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590777834] [2020-11-30 00:05:07,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:08,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590777834] [2020-11-30 00:05:08,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:08,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:08,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978464772] [2020-11-30 00:05:08,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:08,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:08,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:08,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:08,019 INFO L87 Difference]: Start difference. First operand 141 states and 213 transitions. Second operand 4 states. [2020-11-30 00:05:08,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:08,581 INFO L93 Difference]: Finished difference Result 276 states and 416 transitions. [2020-11-30 00:05:08,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:08,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-11-30 00:05:08,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:08,584 INFO L225 Difference]: With dead ends: 276 [2020-11-30 00:05:08,584 INFO L226 Difference]: Without dead ends: 154 [2020-11-30 00:05:08,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:08,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-11-30 00:05:08,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 141. [2020-11-30 00:05:08,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-30 00:05:08,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 212 transitions. [2020-11-30 00:05:08,599 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 212 transitions. Word has length 59 [2020-11-30 00:05:08,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:08,599 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 212 transitions. [2020-11-30 00:05:08,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:08,600 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 212 transitions. [2020-11-30 00:05:08,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-30 00:05:08,600 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:08,601 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:08,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:05:08,601 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:08,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:08,602 INFO L82 PathProgramCache]: Analyzing trace with hash 376743775, now seen corresponding path program 1 times [2020-11-30 00:05:08,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:08,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364251624] [2020-11-30 00:05:08,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:08,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364251624] [2020-11-30 00:05:08,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:08,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:08,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471081581] [2020-11-30 00:05:08,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:08,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:08,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:08,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:08,738 INFO L87 Difference]: Start difference. First operand 141 states and 212 transitions. Second operand 4 states. [2020-11-30 00:05:09,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:09,135 INFO L93 Difference]: Finished difference Result 276 states and 415 transitions. [2020-11-30 00:05:09,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:09,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-11-30 00:05:09,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:09,138 INFO L225 Difference]: With dead ends: 276 [2020-11-30 00:05:09,138 INFO L226 Difference]: Without dead ends: 154 [2020-11-30 00:05:09,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:09,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-11-30 00:05:09,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 141. [2020-11-30 00:05:09,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-30 00:05:09,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 211 transitions. [2020-11-30 00:05:09,149 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 211 transitions. Word has length 59 [2020-11-30 00:05:09,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:09,152 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 211 transitions. [2020-11-30 00:05:09,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:09,152 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 211 transitions. [2020-11-30 00:05:09,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-30 00:05:09,161 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:09,162 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:09,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:05:09,162 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:09,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:09,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1718254146, now seen corresponding path program 1 times [2020-11-30 00:05:09,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:09,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331847591] [2020-11-30 00:05:09,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:09,259 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:09,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331847591] [2020-11-30 00:05:09,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:09,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:09,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851802487] [2020-11-30 00:05:09,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:09,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:09,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:09,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:09,265 INFO L87 Difference]: Start difference. First operand 141 states and 211 transitions. Second operand 4 states. [2020-11-30 00:05:09,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:09,640 INFO L93 Difference]: Finished difference Result 276 states and 414 transitions. [2020-11-30 00:05:09,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:09,641 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2020-11-30 00:05:09,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:09,642 INFO L225 Difference]: With dead ends: 276 [2020-11-30 00:05:09,642 INFO L226 Difference]: Without dead ends: 154 [2020-11-30 00:05:09,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:09,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-11-30 00:05:09,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 141. [2020-11-30 00:05:09,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-30 00:05:09,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 210 transitions. [2020-11-30 00:05:09,649 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 210 transitions. Word has length 60 [2020-11-30 00:05:09,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:09,650 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 210 transitions. [2020-11-30 00:05:09,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:09,650 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 210 transitions. [2020-11-30 00:05:09,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-30 00:05:09,651 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:09,652 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:09,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 00:05:09,652 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:09,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:09,653 INFO L82 PathProgramCache]: Analyzing trace with hash 316605892, now seen corresponding path program 1 times [2020-11-30 00:05:09,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:09,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267176693] [2020-11-30 00:05:09,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:09,769 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:09,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267176693] [2020-11-30 00:05:09,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:09,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:09,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795507146] [2020-11-30 00:05:09,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:09,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:09,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:09,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:09,772 INFO L87 Difference]: Start difference. First operand 141 states and 210 transitions. Second operand 4 states. [2020-11-30 00:05:10,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:10,190 INFO L93 Difference]: Finished difference Result 276 states and 413 transitions. [2020-11-30 00:05:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:10,191 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2020-11-30 00:05:10,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:10,193 INFO L225 Difference]: With dead ends: 276 [2020-11-30 00:05:10,193 INFO L226 Difference]: Without dead ends: 154 [2020-11-30 00:05:10,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:10,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-11-30 00:05:10,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 141. [2020-11-30 00:05:10,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-30 00:05:10,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 209 transitions. [2020-11-30 00:05:10,200 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 209 transitions. Word has length 61 [2020-11-30 00:05:10,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:10,201 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 209 transitions. [2020-11-30 00:05:10,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:10,201 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 209 transitions. [2020-11-30 00:05:10,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-30 00:05:10,202 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:10,202 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:10,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 00:05:10,203 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:10,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:10,203 INFO L82 PathProgramCache]: Analyzing trace with hash -223613817, now seen corresponding path program 1 times [2020-11-30 00:05:10,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:10,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897475814] [2020-11-30 00:05:10,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:10,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897475814] [2020-11-30 00:05:10,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:10,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:10,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110998804] [2020-11-30 00:05:10,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:10,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:10,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:10,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:10,309 INFO L87 Difference]: Start difference. First operand 141 states and 209 transitions. Second operand 4 states. [2020-11-30 00:05:10,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:10,725 INFO L93 Difference]: Finished difference Result 266 states and 399 transitions. [2020-11-30 00:05:10,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:10,725 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-11-30 00:05:10,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:10,726 INFO L225 Difference]: With dead ends: 266 [2020-11-30 00:05:10,726 INFO L226 Difference]: Without dead ends: 144 [2020-11-30 00:05:10,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:10,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-11-30 00:05:10,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 141. [2020-11-30 00:05:10,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-30 00:05:10,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 208 transitions. [2020-11-30 00:05:10,731 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 208 transitions. Word has length 62 [2020-11-30 00:05:10,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:10,731 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 208 transitions. [2020-11-30 00:05:10,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 208 transitions. [2020-11-30 00:05:10,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-30 00:05:10,733 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:10,733 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:10,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 00:05:10,734 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:10,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:10,734 INFO L82 PathProgramCache]: Analyzing trace with hash 176537583, now seen corresponding path program 1 times [2020-11-30 00:05:10,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:10,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833000693] [2020-11-30 00:05:10,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:10,801 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:10,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833000693] [2020-11-30 00:05:10,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:10,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:10,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900341800] [2020-11-30 00:05:10,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:10,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:10,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:10,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:10,804 INFO L87 Difference]: Start difference. First operand 141 states and 208 transitions. Second operand 4 states. [2020-11-30 00:05:11,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:11,248 INFO L93 Difference]: Finished difference Result 306 states and 460 transitions. [2020-11-30 00:05:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:11,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-11-30 00:05:11,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:11,250 INFO L225 Difference]: With dead ends: 306 [2020-11-30 00:05:11,250 INFO L226 Difference]: Without dead ends: 184 [2020-11-30 00:05:11,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:11,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-11-30 00:05:11,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 163. [2020-11-30 00:05:11,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-30 00:05:11,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 246 transitions. [2020-11-30 00:05:11,261 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 246 transitions. Word has length 62 [2020-11-30 00:05:11,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:11,264 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 246 transitions. [2020-11-30 00:05:11,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:11,265 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 246 transitions. [2020-11-30 00:05:11,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-11-30 00:05:11,266 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:11,266 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:11,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 00:05:11,267 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:11,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:11,267 INFO L82 PathProgramCache]: Analyzing trace with hash 551995766, now seen corresponding path program 1 times [2020-11-30 00:05:11,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:11,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652729554] [2020-11-30 00:05:11,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:11,390 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:11,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652729554] [2020-11-30 00:05:11,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:11,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:11,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825570511] [2020-11-30 00:05:11,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:11,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:11,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:11,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:11,394 INFO L87 Difference]: Start difference. First operand 163 states and 246 transitions. Second operand 4 states. [2020-11-30 00:05:11,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:11,893 INFO L93 Difference]: Finished difference Result 328 states and 497 transitions. [2020-11-30 00:05:11,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:11,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 75 [2020-11-30 00:05:11,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:11,896 INFO L225 Difference]: With dead ends: 328 [2020-11-30 00:05:11,896 INFO L226 Difference]: Without dead ends: 184 [2020-11-30 00:05:11,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:11,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-11-30 00:05:11,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 163. [2020-11-30 00:05:11,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-30 00:05:11,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 245 transitions. [2020-11-30 00:05:11,903 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 245 transitions. Word has length 75 [2020-11-30 00:05:11,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:11,903 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 245 transitions. [2020-11-30 00:05:11,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:11,904 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 245 transitions. [2020-11-30 00:05:11,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-30 00:05:11,906 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:11,906 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:11,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 00:05:11,907 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:11,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:11,907 INFO L82 PathProgramCache]: Analyzing trace with hash -475509842, now seen corresponding path program 1 times [2020-11-30 00:05:11,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:11,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027753509] [2020-11-30 00:05:11,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:11,999 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:11,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027753509] [2020-11-30 00:05:11,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:12,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:12,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196180092] [2020-11-30 00:05:12,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:12,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:12,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:12,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:12,002 INFO L87 Difference]: Start difference. First operand 163 states and 245 transitions. Second operand 4 states. [2020-11-30 00:05:12,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:12,491 INFO L93 Difference]: Finished difference Result 327 states and 494 transitions. [2020-11-30 00:05:12,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:12,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2020-11-30 00:05:12,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:12,494 INFO L225 Difference]: With dead ends: 327 [2020-11-30 00:05:12,494 INFO L226 Difference]: Without dead ends: 183 [2020-11-30 00:05:12,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:12,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-11-30 00:05:12,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 163. [2020-11-30 00:05:12,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-30 00:05:12,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 244 transitions. [2020-11-30 00:05:12,502 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 244 transitions. Word has length 76 [2020-11-30 00:05:12,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:12,503 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 244 transitions. [2020-11-30 00:05:12,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:12,503 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 244 transitions. [2020-11-30 00:05:12,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-30 00:05:12,504 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:12,504 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:12,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 00:05:12,505 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:12,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:12,506 INFO L82 PathProgramCache]: Analyzing trace with hash 867683609, now seen corresponding path program 1 times [2020-11-30 00:05:12,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:12,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128896153] [2020-11-30 00:05:12,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:12,612 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:12,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128896153] [2020-11-30 00:05:12,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:12,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:12,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98772930] [2020-11-30 00:05:12,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:12,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:12,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:12,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:12,617 INFO L87 Difference]: Start difference. First operand 163 states and 244 transitions. Second operand 4 states. [2020-11-30 00:05:13,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:13,125 INFO L93 Difference]: Finished difference Result 325 states and 490 transitions. [2020-11-30 00:05:13,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:13,126 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2020-11-30 00:05:13,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:13,128 INFO L225 Difference]: With dead ends: 325 [2020-11-30 00:05:13,128 INFO L226 Difference]: Without dead ends: 181 [2020-11-30 00:05:13,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:13,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-11-30 00:05:13,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 163. [2020-11-30 00:05:13,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-30 00:05:13,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 243 transitions. [2020-11-30 00:05:13,137 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 243 transitions. Word has length 76 [2020-11-30 00:05:13,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:13,138 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 243 transitions. [2020-11-30 00:05:13,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:13,138 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 243 transitions. [2020-11-30 00:05:13,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-30 00:05:13,139 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:13,139 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:13,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 00:05:13,140 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:13,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:13,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1817031769, now seen corresponding path program 1 times [2020-11-30 00:05:13,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:13,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948628450] [2020-11-30 00:05:13,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:13,206 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:13,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948628450] [2020-11-30 00:05:13,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:13,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:13,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806039880] [2020-11-30 00:05:13,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:13,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:13,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:13,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:13,209 INFO L87 Difference]: Start difference. First operand 163 states and 243 transitions. Second operand 4 states. [2020-11-30 00:05:13,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:13,692 INFO L93 Difference]: Finished difference Result 324 states and 487 transitions. [2020-11-30 00:05:13,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:13,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2020-11-30 00:05:13,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:13,694 INFO L225 Difference]: With dead ends: 324 [2020-11-30 00:05:13,695 INFO L226 Difference]: Without dead ends: 180 [2020-11-30 00:05:13,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:13,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-30 00:05:13,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 163. [2020-11-30 00:05:13,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-30 00:05:13,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 242 transitions. [2020-11-30 00:05:13,701 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 242 transitions. Word has length 76 [2020-11-30 00:05:13,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:13,702 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 242 transitions. [2020-11-30 00:05:13,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:13,702 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 242 transitions. [2020-11-30 00:05:13,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-30 00:05:13,703 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:13,703 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:13,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-30 00:05:13,703 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:13,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:13,705 INFO L82 PathProgramCache]: Analyzing trace with hash 362500930, now seen corresponding path program 1 times [2020-11-30 00:05:13,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:13,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468837653] [2020-11-30 00:05:13,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:13,769 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:13,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468837653] [2020-11-30 00:05:13,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:13,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:13,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117372923] [2020-11-30 00:05:13,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:13,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:13,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:13,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:13,773 INFO L87 Difference]: Start difference. First operand 163 states and 242 transitions. Second operand 4 states. [2020-11-30 00:05:14,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:14,273 INFO L93 Difference]: Finished difference Result 324 states and 485 transitions. [2020-11-30 00:05:14,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:14,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2020-11-30 00:05:14,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:14,275 INFO L225 Difference]: With dead ends: 324 [2020-11-30 00:05:14,275 INFO L226 Difference]: Without dead ends: 180 [2020-11-30 00:05:14,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:14,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-30 00:05:14,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 163. [2020-11-30 00:05:14,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-30 00:05:14,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 241 transitions. [2020-11-30 00:05:14,287 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 241 transitions. Word has length 76 [2020-11-30 00:05:14,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:14,287 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 241 transitions. [2020-11-30 00:05:14,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:14,287 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 241 transitions. [2020-11-30 00:05:14,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-11-30 00:05:14,289 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:14,289 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:14,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-30 00:05:14,290 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:14,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:14,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1276725951, now seen corresponding path program 1 times [2020-11-30 00:05:14,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:14,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585774330] [2020-11-30 00:05:14,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:14,356 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:14,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585774330] [2020-11-30 00:05:14,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:14,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:14,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913289516] [2020-11-30 00:05:14,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:14,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:14,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:14,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:14,368 INFO L87 Difference]: Start difference. First operand 163 states and 241 transitions. Second operand 4 states. [2020-11-30 00:05:14,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:14,852 INFO L93 Difference]: Finished difference Result 324 states and 483 transitions. [2020-11-30 00:05:14,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:14,853 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 77 [2020-11-30 00:05:14,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:14,855 INFO L225 Difference]: With dead ends: 324 [2020-11-30 00:05:14,855 INFO L226 Difference]: Without dead ends: 180 [2020-11-30 00:05:14,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:14,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-30 00:05:14,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 163. [2020-11-30 00:05:14,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-30 00:05:14,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 240 transitions. [2020-11-30 00:05:14,861 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 240 transitions. Word has length 77 [2020-11-30 00:05:14,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:14,862 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 240 transitions. [2020-11-30 00:05:14,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:14,862 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 240 transitions. [2020-11-30 00:05:14,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-30 00:05:14,863 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:14,863 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:14,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-30 00:05:14,864 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:14,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:14,864 INFO L82 PathProgramCache]: Analyzing trace with hash -485866265, now seen corresponding path program 1 times [2020-11-30 00:05:14,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:14,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494974949] [2020-11-30 00:05:14,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:14,931 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:14,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494974949] [2020-11-30 00:05:14,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:14,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:14,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974149803] [2020-11-30 00:05:14,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:14,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:14,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:14,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:14,934 INFO L87 Difference]: Start difference. First operand 163 states and 240 transitions. Second operand 4 states. [2020-11-30 00:05:15,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:15,401 INFO L93 Difference]: Finished difference Result 324 states and 481 transitions. [2020-11-30 00:05:15,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:15,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2020-11-30 00:05:15,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:15,404 INFO L225 Difference]: With dead ends: 324 [2020-11-30 00:05:15,404 INFO L226 Difference]: Without dead ends: 180 [2020-11-30 00:05:15,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:15,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-30 00:05:15,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 163. [2020-11-30 00:05:15,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-30 00:05:15,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 239 transitions. [2020-11-30 00:05:15,412 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 239 transitions. Word has length 78 [2020-11-30 00:05:15,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:15,413 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 239 transitions. [2020-11-30 00:05:15,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:15,413 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 239 transitions. [2020-11-30 00:05:15,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-11-30 00:05:15,414 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:15,414 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:15,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-30 00:05:15,415 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:15,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:15,415 INFO L82 PathProgramCache]: Analyzing trace with hash 669553092, now seen corresponding path program 1 times [2020-11-30 00:05:15,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:15,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513179527] [2020-11-30 00:05:15,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:15,512 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:15,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513179527] [2020-11-30 00:05:15,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:15,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:15,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98675326] [2020-11-30 00:05:15,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:15,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:15,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:15,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:15,517 INFO L87 Difference]: Start difference. First operand 163 states and 239 transitions. Second operand 4 states. [2020-11-30 00:05:15,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:15,957 INFO L93 Difference]: Finished difference Result 314 states and 466 transitions. [2020-11-30 00:05:15,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:15,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 79 [2020-11-30 00:05:15,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:15,960 INFO L225 Difference]: With dead ends: 314 [2020-11-30 00:05:15,960 INFO L226 Difference]: Without dead ends: 170 [2020-11-30 00:05:15,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:15,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-11-30 00:05:15,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 163. [2020-11-30 00:05:15,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-30 00:05:15,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 238 transitions. [2020-11-30 00:05:15,967 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 238 transitions. Word has length 79 [2020-11-30 00:05:15,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:15,968 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 238 transitions. [2020-11-30 00:05:15,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:15,968 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 238 transitions. [2020-11-30 00:05:15,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-11-30 00:05:15,969 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:15,969 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:15,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-30 00:05:15,970 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:15,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:15,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1124223160, now seen corresponding path program 1 times [2020-11-30 00:05:15,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:15,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157298200] [2020-11-30 00:05:15,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:16,114 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:16,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157298200] [2020-11-30 00:05:16,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:16,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:16,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504270267] [2020-11-30 00:05:16,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:16,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:16,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:16,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:16,118 INFO L87 Difference]: Start difference. First operand 163 states and 238 transitions. Second operand 4 states. [2020-11-30 00:05:16,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:16,828 INFO L93 Difference]: Finished difference Result 402 states and 601 transitions. [2020-11-30 00:05:16,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:16,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2020-11-30 00:05:16,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:16,831 INFO L225 Difference]: With dead ends: 402 [2020-11-30 00:05:16,831 INFO L226 Difference]: Without dead ends: 258 [2020-11-30 00:05:16,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:16,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-11-30 00:05:16,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 206. [2020-11-30 00:05:16,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-11-30 00:05:16,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 316 transitions. [2020-11-30 00:05:16,843 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 316 transitions. Word has length 84 [2020-11-30 00:05:16,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:16,843 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 316 transitions. [2020-11-30 00:05:16,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:16,843 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 316 transitions. [2020-11-30 00:05:16,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-11-30 00:05:16,845 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:16,845 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:16,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-30 00:05:16,845 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:16,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:16,846 INFO L82 PathProgramCache]: Analyzing trace with hash -2021616438, now seen corresponding path program 1 times [2020-11-30 00:05:16,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:16,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725873460] [2020-11-30 00:05:16,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:16,919 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:16,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725873460] [2020-11-30 00:05:16,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:16,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:16,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029474501] [2020-11-30 00:05:16,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:16,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:16,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:16,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:16,922 INFO L87 Difference]: Start difference. First operand 206 states and 316 transitions. Second operand 4 states. [2020-11-30 00:05:17,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:17,531 INFO L93 Difference]: Finished difference Result 442 states and 685 transitions. [2020-11-30 00:05:17,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:17,532 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2020-11-30 00:05:17,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:17,535 INFO L225 Difference]: With dead ends: 442 [2020-11-30 00:05:17,535 INFO L226 Difference]: Without dead ends: 255 [2020-11-30 00:05:17,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:17,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-11-30 00:05:17,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 230. [2020-11-30 00:05:17,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-30 00:05:17,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 358 transitions. [2020-11-30 00:05:17,546 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 358 transitions. Word has length 84 [2020-11-30 00:05:17,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:17,547 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 358 transitions. [2020-11-30 00:05:17,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:17,547 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 358 transitions. [2020-11-30 00:05:17,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-11-30 00:05:17,549 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:17,549 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:17,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-30 00:05:17,550 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:17,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:17,551 INFO L82 PathProgramCache]: Analyzing trace with hash -344765763, now seen corresponding path program 1 times [2020-11-30 00:05:17,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:17,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104905347] [2020-11-30 00:05:17,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:17,631 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:17,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104905347] [2020-11-30 00:05:17,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:17,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:17,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428362108] [2020-11-30 00:05:17,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:17,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:17,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:17,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:17,634 INFO L87 Difference]: Start difference. First operand 230 states and 358 transitions. Second operand 4 states. [2020-11-30 00:05:18,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:18,358 INFO L93 Difference]: Finished difference Result 493 states and 762 transitions. [2020-11-30 00:05:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:18,359 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 97 [2020-11-30 00:05:18,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:18,361 INFO L225 Difference]: With dead ends: 493 [2020-11-30 00:05:18,361 INFO L226 Difference]: Without dead ends: 282 [2020-11-30 00:05:18,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:18,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-30 00:05:18,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 230. [2020-11-30 00:05:18,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-30 00:05:18,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 357 transitions. [2020-11-30 00:05:18,375 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 357 transitions. Word has length 97 [2020-11-30 00:05:18,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:18,375 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 357 transitions. [2020-11-30 00:05:18,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:18,375 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 357 transitions. [2020-11-30 00:05:18,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-11-30 00:05:18,377 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:18,377 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:18,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-30 00:05:18,377 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:18,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:18,378 INFO L82 PathProgramCache]: Analyzing trace with hash -304091013, now seen corresponding path program 1 times [2020-11-30 00:05:18,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:18,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315424025] [2020-11-30 00:05:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:18,496 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:18,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315424025] [2020-11-30 00:05:18,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:18,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:18,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410187457] [2020-11-30 00:05:18,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:18,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:18,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:18,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:18,499 INFO L87 Difference]: Start difference. First operand 230 states and 357 transitions. Second operand 4 states. [2020-11-30 00:05:19,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:19,051 INFO L93 Difference]: Finished difference Result 466 states and 724 transitions. [2020-11-30 00:05:19,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:19,054 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 97 [2020-11-30 00:05:19,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:19,056 INFO L225 Difference]: With dead ends: 466 [2020-11-30 00:05:19,056 INFO L226 Difference]: Without dead ends: 255 [2020-11-30 00:05:19,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:19,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-11-30 00:05:19,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 230. [2020-11-30 00:05:19,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-30 00:05:19,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 356 transitions. [2020-11-30 00:05:19,066 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 356 transitions. Word has length 97 [2020-11-30 00:05:19,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:19,066 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 356 transitions. [2020-11-30 00:05:19,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 356 transitions. [2020-11-30 00:05:19,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-11-30 00:05:19,068 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:19,068 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:19,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-30 00:05:19,069 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:19,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:19,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1789653831, now seen corresponding path program 1 times [2020-11-30 00:05:19,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:19,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104337643] [2020-11-30 00:05:19,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:19,156 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:19,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104337643] [2020-11-30 00:05:19,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:19,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:19,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865145863] [2020-11-30 00:05:19,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:19,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:19,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:19,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:19,159 INFO L87 Difference]: Start difference. First operand 230 states and 356 transitions. Second operand 4 states. [2020-11-30 00:05:19,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:19,798 INFO L93 Difference]: Finished difference Result 492 states and 757 transitions. [2020-11-30 00:05:19,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:19,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2020-11-30 00:05:19,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:19,801 INFO L225 Difference]: With dead ends: 492 [2020-11-30 00:05:19,802 INFO L226 Difference]: Without dead ends: 281 [2020-11-30 00:05:19,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:19,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-11-30 00:05:19,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 230. [2020-11-30 00:05:19,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-30 00:05:19,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 355 transitions. [2020-11-30 00:05:19,813 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 355 transitions. Word has length 98 [2020-11-30 00:05:19,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:19,813 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 355 transitions. [2020-11-30 00:05:19,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:19,814 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 355 transitions. [2020-11-30 00:05:19,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-11-30 00:05:19,815 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:19,816 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:19,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-30 00:05:19,816 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:19,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:19,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1162120014, now seen corresponding path program 1 times [2020-11-30 00:05:19,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:19,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204029436] [2020-11-30 00:05:19,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:19,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204029436] [2020-11-30 00:05:19,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:19,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:19,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772208979] [2020-11-30 00:05:19,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:19,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:19,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:19,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:19,910 INFO L87 Difference]: Start difference. First operand 230 states and 355 transitions. Second operand 4 states. [2020-11-30 00:05:20,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:20,401 INFO L93 Difference]: Finished difference Result 490 states and 753 transitions. [2020-11-30 00:05:20,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:20,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2020-11-30 00:05:20,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:20,404 INFO L225 Difference]: With dead ends: 490 [2020-11-30 00:05:20,405 INFO L226 Difference]: Without dead ends: 279 [2020-11-30 00:05:20,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:20,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-11-30 00:05:20,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 230. [2020-11-30 00:05:20,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-30 00:05:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 354 transitions. [2020-11-30 00:05:20,416 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 354 transitions. Word has length 98 [2020-11-30 00:05:20,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:20,416 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 354 transitions. [2020-11-30 00:05:20,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:20,417 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 354 transitions. [2020-11-30 00:05:20,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-11-30 00:05:20,418 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:20,419 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:20,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-30 00:05:20,419 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:20,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:20,420 INFO L82 PathProgramCache]: Analyzing trace with hash -212771854, now seen corresponding path program 1 times [2020-11-30 00:05:20,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:20,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713918414] [2020-11-30 00:05:20,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:20,503 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:20,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713918414] [2020-11-30 00:05:20,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:20,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:20,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323224926] [2020-11-30 00:05:20,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:20,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:20,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:20,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:20,506 INFO L87 Difference]: Start difference. First operand 230 states and 354 transitions. Second operand 4 states. [2020-11-30 00:05:21,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:21,147 INFO L93 Difference]: Finished difference Result 489 states and 750 transitions. [2020-11-30 00:05:21,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:21,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2020-11-30 00:05:21,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:21,150 INFO L225 Difference]: With dead ends: 489 [2020-11-30 00:05:21,151 INFO L226 Difference]: Without dead ends: 278 [2020-11-30 00:05:21,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:21,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-11-30 00:05:21,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 230. [2020-11-30 00:05:21,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-30 00:05:21,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 353 transitions. [2020-11-30 00:05:21,160 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 353 transitions. Word has length 98 [2020-11-30 00:05:21,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:21,160 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 353 transitions. [2020-11-30 00:05:21,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:21,161 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 353 transitions. [2020-11-30 00:05:21,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-11-30 00:05:21,162 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:21,163 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:21,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-30 00:05:21,163 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:21,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:21,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1667302693, now seen corresponding path program 1 times [2020-11-30 00:05:21,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:21,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100766455] [2020-11-30 00:05:21,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:21,274 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-30 00:05:21,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100766455] [2020-11-30 00:05:21,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:21,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:05:21,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939431303] [2020-11-30 00:05:21,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:05:21,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:21,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:05:21,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:21,277 INFO L87 Difference]: Start difference. First operand 230 states and 353 transitions. Second operand 5 states. [2020-11-30 00:05:21,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:21,859 INFO L93 Difference]: Finished difference Result 462 states and 714 transitions. [2020-11-30 00:05:21,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:05:21,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2020-11-30 00:05:21,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:21,862 INFO L225 Difference]: With dead ends: 462 [2020-11-30 00:05:21,862 INFO L226 Difference]: Without dead ends: 251 [2020-11-30 00:05:21,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:05:21,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-11-30 00:05:21,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 250. [2020-11-30 00:05:21,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-30 00:05:21,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 379 transitions. [2020-11-30 00:05:21,873 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 379 transitions. Word has length 98 [2020-11-30 00:05:21,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:21,873 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 379 transitions. [2020-11-30 00:05:21,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:05:21,874 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 379 transitions. [2020-11-30 00:05:21,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-11-30 00:05:21,875 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:21,875 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:21,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-11-30 00:05:21,876 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:21,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:21,877 INFO L82 PathProgramCache]: Analyzing trace with hash 98797236, now seen corresponding path program 1 times [2020-11-30 00:05:21,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:21,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760907882] [2020-11-30 00:05:21,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:21,989 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:21,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760907882] [2020-11-30 00:05:21,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:21,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:21,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795678359] [2020-11-30 00:05:21,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:21,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:21,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:21,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:21,993 INFO L87 Difference]: Start difference. First operand 250 states and 379 transitions. Second operand 4 states. [2020-11-30 00:05:22,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:22,426 INFO L93 Difference]: Finished difference Result 503 states and 764 transitions. [2020-11-30 00:05:22,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:22,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2020-11-30 00:05:22,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:22,429 INFO L225 Difference]: With dead ends: 503 [2020-11-30 00:05:22,429 INFO L226 Difference]: Without dead ends: 272 [2020-11-30 00:05:22,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:22,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-11-30 00:05:22,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 250. [2020-11-30 00:05:22,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-30 00:05:22,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 378 transitions. [2020-11-30 00:05:22,440 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 378 transitions. Word has length 98 [2020-11-30 00:05:22,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:22,440 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 378 transitions. [2020-11-30 00:05:22,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:22,441 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 378 transitions. [2020-11-30 00:05:22,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-11-30 00:05:22,442 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:22,442 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:22,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-11-30 00:05:22,443 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:22,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:22,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1048145396, now seen corresponding path program 1 times [2020-11-30 00:05:22,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:22,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477689655] [2020-11-30 00:05:22,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:22,530 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:22,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477689655] [2020-11-30 00:05:22,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:22,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:22,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322735054] [2020-11-30 00:05:22,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:22,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:22,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:22,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:22,533 INFO L87 Difference]: Start difference. First operand 250 states and 378 transitions. Second operand 4 states. [2020-11-30 00:05:23,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:23,101 INFO L93 Difference]: Finished difference Result 502 states and 761 transitions. [2020-11-30 00:05:23,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:23,102 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2020-11-30 00:05:23,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:23,104 INFO L225 Difference]: With dead ends: 502 [2020-11-30 00:05:23,104 INFO L226 Difference]: Without dead ends: 271 [2020-11-30 00:05:23,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:23,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-11-30 00:05:23,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 250. [2020-11-30 00:05:23,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-30 00:05:23,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 377 transitions. [2020-11-30 00:05:23,117 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 377 transitions. Word has length 98 [2020-11-30 00:05:23,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:23,118 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 377 transitions. [2020-11-30 00:05:23,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:23,118 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 377 transitions. [2020-11-30 00:05:23,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-11-30 00:05:23,119 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:23,120 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:23,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-11-30 00:05:23,120 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:23,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:23,121 INFO L82 PathProgramCache]: Analyzing trace with hash -645348551, now seen corresponding path program 1 times [2020-11-30 00:05:23,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:23,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128038086] [2020-11-30 00:05:23,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:23,213 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:23,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128038086] [2020-11-30 00:05:23,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:23,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:23,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439631609] [2020-11-30 00:05:23,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:23,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:23,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:23,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:23,216 INFO L87 Difference]: Start difference. First operand 250 states and 377 transitions. Second operand 4 states. [2020-11-30 00:05:23,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:23,881 INFO L93 Difference]: Finished difference Result 529 states and 795 transitions. [2020-11-30 00:05:23,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:23,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2020-11-30 00:05:23,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:23,884 INFO L225 Difference]: With dead ends: 529 [2020-11-30 00:05:23,885 INFO L226 Difference]: Without dead ends: 298 [2020-11-30 00:05:23,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:23,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-30 00:05:23,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 250. [2020-11-30 00:05:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-30 00:05:23,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 376 transitions. [2020-11-30 00:05:23,900 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 376 transitions. Word has length 99 [2020-11-30 00:05:23,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:23,901 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 376 transitions. [2020-11-30 00:05:23,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:23,901 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 376 transitions. [2020-11-30 00:05:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-11-30 00:05:23,902 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:23,903 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:23,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-11-30 00:05:23,903 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:23,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:23,904 INFO L82 PathProgramCache]: Analyzing trace with hash -211619465, now seen corresponding path program 1 times [2020-11-30 00:05:23,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:23,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644390676] [2020-11-30 00:05:23,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:23,975 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:23,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644390676] [2020-11-30 00:05:23,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:23,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:23,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605724248] [2020-11-30 00:05:23,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:23,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:23,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:23,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:23,978 INFO L87 Difference]: Start difference. First operand 250 states and 376 transitions. Second operand 4 states. [2020-11-30 00:05:24,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:24,498 INFO L93 Difference]: Finished difference Result 502 states and 757 transitions. [2020-11-30 00:05:24,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:24,499 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2020-11-30 00:05:24,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:24,501 INFO L225 Difference]: With dead ends: 502 [2020-11-30 00:05:24,501 INFO L226 Difference]: Without dead ends: 271 [2020-11-30 00:05:24,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:24,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-11-30 00:05:24,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 250. [2020-11-30 00:05:24,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-30 00:05:24,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 375 transitions. [2020-11-30 00:05:24,513 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 375 transitions. Word has length 99 [2020-11-30 00:05:24,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:24,513 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 375 transitions. [2020-11-30 00:05:24,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:24,514 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 375 transitions. [2020-11-30 00:05:24,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-11-30 00:05:24,515 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:24,515 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:24,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-11-30 00:05:24,516 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:24,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:24,516 INFO L82 PathProgramCache]: Analyzing trace with hash -300903122, now seen corresponding path program 1 times [2020-11-30 00:05:24,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:24,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206954855] [2020-11-30 00:05:24,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:24,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:24,617 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:24,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206954855] [2020-11-30 00:05:24,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:24,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:24,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910299387] [2020-11-30 00:05:24,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:24,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:24,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:24,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:24,620 INFO L87 Difference]: Start difference. First operand 250 states and 375 transitions. Second operand 4 states. [2020-11-30 00:05:25,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:25,182 INFO L93 Difference]: Finished difference Result 529 states and 791 transitions. [2020-11-30 00:05:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:25,183 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 100 [2020-11-30 00:05:25,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:25,185 INFO L225 Difference]: With dead ends: 529 [2020-11-30 00:05:25,185 INFO L226 Difference]: Without dead ends: 298 [2020-11-30 00:05:25,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:25,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-30 00:05:25,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 250. [2020-11-30 00:05:25,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-30 00:05:25,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 374 transitions. [2020-11-30 00:05:25,196 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 374 transitions. Word has length 100 [2020-11-30 00:05:25,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:25,197 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 374 transitions. [2020-11-30 00:05:25,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:25,197 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 374 transitions. [2020-11-30 00:05:25,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-11-30 00:05:25,199 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:25,199 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:25,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-11-30 00:05:25,199 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:25,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:25,200 INFO L82 PathProgramCache]: Analyzing trace with hash 259796656, now seen corresponding path program 1 times [2020-11-30 00:05:25,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:25,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610818374] [2020-11-30 00:05:25,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:25,286 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:25,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610818374] [2020-11-30 00:05:25,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:25,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:25,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637067284] [2020-11-30 00:05:25,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:25,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:25,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:25,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:25,289 INFO L87 Difference]: Start difference. First operand 250 states and 374 transitions. Second operand 4 states. [2020-11-30 00:05:25,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:25,807 INFO L93 Difference]: Finished difference Result 502 states and 753 transitions. [2020-11-30 00:05:25,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:25,808 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 100 [2020-11-30 00:05:25,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:25,811 INFO L225 Difference]: With dead ends: 502 [2020-11-30 00:05:25,811 INFO L226 Difference]: Without dead ends: 271 [2020-11-30 00:05:25,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:25,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-11-30 00:05:25,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 250. [2020-11-30 00:05:25,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-30 00:05:25,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 373 transitions. [2020-11-30 00:05:25,824 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 373 transitions. Word has length 100 [2020-11-30 00:05:25,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:25,825 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 373 transitions. [2020-11-30 00:05:25,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:25,825 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 373 transitions. [2020-11-30 00:05:25,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-11-30 00:05:25,826 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:25,827 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:25,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-11-30 00:05:25,827 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:25,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:25,828 INFO L82 PathProgramCache]: Analyzing trace with hash 584269940, now seen corresponding path program 1 times [2020-11-30 00:05:25,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:25,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088520734] [2020-11-30 00:05:25,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:25,955 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:25,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088520734] [2020-11-30 00:05:25,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:25,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:25,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426347682] [2020-11-30 00:05:25,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:25,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:25,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:25,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:25,957 INFO L87 Difference]: Start difference. First operand 250 states and 373 transitions. Second operand 4 states. [2020-11-30 00:05:26,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:26,553 INFO L93 Difference]: Finished difference Result 529 states and 787 transitions. [2020-11-30 00:05:26,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:26,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2020-11-30 00:05:26,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:26,556 INFO L225 Difference]: With dead ends: 529 [2020-11-30 00:05:26,556 INFO L226 Difference]: Without dead ends: 298 [2020-11-30 00:05:26,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:26,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-30 00:05:26,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 250. [2020-11-30 00:05:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-30 00:05:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 372 transitions. [2020-11-30 00:05:26,569 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 372 transitions. Word has length 101 [2020-11-30 00:05:26,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:26,569 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 372 transitions. [2020-11-30 00:05:26,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:26,570 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 372 transitions. [2020-11-30 00:05:26,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-11-30 00:05:26,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:26,571 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:26,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-11-30 00:05:26,572 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:26,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:26,573 INFO L82 PathProgramCache]: Analyzing trace with hash 786093874, now seen corresponding path program 1 times [2020-11-30 00:05:26,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:26,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321560398] [2020-11-30 00:05:26,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:26,789 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:26,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321560398] [2020-11-30 00:05:26,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:26,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:26,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622381887] [2020-11-30 00:05:26,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:26,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:26,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:26,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:26,793 INFO L87 Difference]: Start difference. First operand 250 states and 372 transitions. Second operand 4 states. [2020-11-30 00:05:27,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:27,318 INFO L93 Difference]: Finished difference Result 502 states and 749 transitions. [2020-11-30 00:05:27,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:27,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2020-11-30 00:05:27,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:27,322 INFO L225 Difference]: With dead ends: 502 [2020-11-30 00:05:27,322 INFO L226 Difference]: Without dead ends: 271 [2020-11-30 00:05:27,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:27,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-11-30 00:05:27,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 250. [2020-11-30 00:05:27,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-30 00:05:27,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 371 transitions. [2020-11-30 00:05:27,332 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 371 transitions. Word has length 101 [2020-11-30 00:05:27,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:27,333 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 371 transitions. [2020-11-30 00:05:27,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:27,333 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 371 transitions. [2020-11-30 00:05:27,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-11-30 00:05:27,334 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:27,335 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:27,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-11-30 00:05:27,335 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:27,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:27,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1052130441, now seen corresponding path program 1 times [2020-11-30 00:05:27,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:27,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390302396] [2020-11-30 00:05:27,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:27,455 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:27,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390302396] [2020-11-30 00:05:27,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:27,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:27,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183012341] [2020-11-30 00:05:27,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:27,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:27,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:27,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:27,458 INFO L87 Difference]: Start difference. First operand 250 states and 371 transitions. Second operand 4 states. [2020-11-30 00:05:27,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:27,967 INFO L93 Difference]: Finished difference Result 519 states and 771 transitions. [2020-11-30 00:05:27,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:27,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2020-11-30 00:05:27,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:27,978 INFO L225 Difference]: With dead ends: 519 [2020-11-30 00:05:27,978 INFO L226 Difference]: Without dead ends: 288 [2020-11-30 00:05:27,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:27,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-11-30 00:05:27,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 250. [2020-11-30 00:05:27,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-30 00:05:27,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 370 transitions. [2020-11-30 00:05:27,991 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 370 transitions. Word has length 102 [2020-11-30 00:05:27,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:27,992 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 370 transitions. [2020-11-30 00:05:27,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:27,992 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 370 transitions. [2020-11-30 00:05:27,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-11-30 00:05:27,994 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:27,994 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:27,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-11-30 00:05:27,994 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:27,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:27,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1281262197, now seen corresponding path program 1 times [2020-11-30 00:05:27,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:27,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094412971] [2020-11-30 00:05:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:28,080 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:28,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094412971] [2020-11-30 00:05:28,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:28,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:28,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493635680] [2020-11-30 00:05:28,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:28,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:28,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:28,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:28,084 INFO L87 Difference]: Start difference. First operand 250 states and 370 transitions. Second operand 4 states. [2020-11-30 00:05:28,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:28,506 INFO L93 Difference]: Finished difference Result 492 states and 733 transitions. [2020-11-30 00:05:28,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:28,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2020-11-30 00:05:28,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:28,510 INFO L225 Difference]: With dead ends: 492 [2020-11-30 00:05:28,510 INFO L226 Difference]: Without dead ends: 261 [2020-11-30 00:05:28,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:28,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-11-30 00:05:28,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 250. [2020-11-30 00:05:28,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-30 00:05:28,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 369 transitions. [2020-11-30 00:05:28,521 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 369 transitions. Word has length 102 [2020-11-30 00:05:28,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:28,522 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 369 transitions. [2020-11-30 00:05:28,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:28,522 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 369 transitions. [2020-11-30 00:05:28,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-30 00:05:28,524 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:28,524 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:28,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-11-30 00:05:28,524 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:28,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:28,525 INFO L82 PathProgramCache]: Analyzing trace with hash -251052971, now seen corresponding path program 1 times [2020-11-30 00:05:28,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:28,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150391925] [2020-11-30 00:05:28,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:28,632 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:05:28,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150391925] [2020-11-30 00:05:28,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:28,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:05:28,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759641285] [2020-11-30 00:05:28,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:28,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:28,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:28,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:28,637 INFO L87 Difference]: Start difference. First operand 250 states and 369 transitions. Second operand 4 states. [2020-11-30 00:05:29,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:29,275 INFO L93 Difference]: Finished difference Result 519 states and 767 transitions. [2020-11-30 00:05:29,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:29,277 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2020-11-30 00:05:29,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:29,279 INFO L225 Difference]: With dead ends: 519 [2020-11-30 00:05:29,279 INFO L226 Difference]: Without dead ends: 288 [2020-11-30 00:05:29,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:05:29,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-11-30 00:05:29,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 250. [2020-11-30 00:05:29,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-30 00:05:29,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 368 transitions. [2020-11-30 00:05:29,293 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 368 transitions. Word has length 106 [2020-11-30 00:05:29,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:29,293 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 368 transitions. [2020-11-30 00:05:29,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:29,294 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 368 transitions. [2020-11-30 00:05:29,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-30 00:05:29,295 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:29,295 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:29,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-11-30 00:05:29,296 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:29,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:29,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1937232809, now seen corresponding path program 1 times [2020-11-30 00:05:29,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:29,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378723216] [2020-11-30 00:05:29,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:29,377 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-30 00:05:29,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378723216] [2020-11-30 00:05:29,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:29,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:05:29,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618965265] [2020-11-30 00:05:29,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:05:29,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:29,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:05:29,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:05:29,381 INFO L87 Difference]: Start difference. First operand 250 states and 368 transitions. Second operand 3 states. [2020-11-30 00:05:29,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:29,452 INFO L93 Difference]: Finished difference Result 707 states and 1055 transitions. [2020-11-30 00:05:29,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:05:29,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-30 00:05:29,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:29,457 INFO L225 Difference]: With dead ends: 707 [2020-11-30 00:05:29,457 INFO L226 Difference]: Without dead ends: 476 [2020-11-30 00:05:29,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:05:29,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-11-30 00:05:29,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2020-11-30 00:05:29,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2020-11-30 00:05:29,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 705 transitions. [2020-11-30 00:05:29,481 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 705 transitions. Word has length 106 [2020-11-30 00:05:29,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:29,481 INFO L481 AbstractCegarLoop]: Abstraction has 476 states and 705 transitions. [2020-11-30 00:05:29,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:05:29,482 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 705 transitions. [2020-11-30 00:05:29,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-30 00:05:29,484 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:29,484 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:29,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-11-30 00:05:29,485 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:29,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:29,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1141580761, now seen corresponding path program 1 times [2020-11-30 00:05:29,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:29,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521387782] [2020-11-30 00:05:29,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:29,546 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-11-30 00:05:29,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521387782] [2020-11-30 00:05:29,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:29,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:05:29,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631803340] [2020-11-30 00:05:29,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:05:29,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:29,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:05:29,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:05:29,549 INFO L87 Difference]: Start difference. First operand 476 states and 705 transitions. Second operand 3 states. [2020-11-30 00:05:29,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:29,617 INFO L93 Difference]: Finished difference Result 960 states and 1425 transitions. [2020-11-30 00:05:29,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:05:29,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-30 00:05:29,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:29,622 INFO L225 Difference]: With dead ends: 960 [2020-11-30 00:05:29,622 INFO L226 Difference]: Without dead ends: 503 [2020-11-30 00:05:29,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:05:29,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-11-30 00:05:29,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2020-11-30 00:05:29,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-11-30 00:05:29,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 740 transitions. [2020-11-30 00:05:29,670 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 740 transitions. Word has length 106 [2020-11-30 00:05:29,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:29,670 INFO L481 AbstractCegarLoop]: Abstraction has 503 states and 740 transitions. [2020-11-30 00:05:29,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:05:29,671 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 740 transitions. [2020-11-30 00:05:29,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-30 00:05:29,673 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:29,673 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:29,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-11-30 00:05:29,674 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:29,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:29,675 INFO L82 PathProgramCache]: Analyzing trace with hash 555304539, now seen corresponding path program 1 times [2020-11-30 00:05:29,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:29,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667324040] [2020-11-30 00:05:29,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:29,744 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-11-30 00:05:29,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667324040] [2020-11-30 00:05:29,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:29,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:05:29,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114417092] [2020-11-30 00:05:29,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:05:29,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:05:29,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:05:29,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:05:29,747 INFO L87 Difference]: Start difference. First operand 503 states and 740 transitions. Second operand 3 states. [2020-11-30 00:05:29,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:29,790 INFO L93 Difference]: Finished difference Result 989 states and 1461 transitions. [2020-11-30 00:05:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:05:29,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-30 00:05:29,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:29,794 INFO L225 Difference]: With dead ends: 989 [2020-11-30 00:05:29,795 INFO L226 Difference]: Without dead ends: 505 [2020-11-30 00:05:29,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:05:29,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2020-11-30 00:05:29,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2020-11-30 00:05:29,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2020-11-30 00:05:29,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 742 transitions. [2020-11-30 00:05:29,822 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 742 transitions. Word has length 106 [2020-11-30 00:05:29,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:29,823 INFO L481 AbstractCegarLoop]: Abstraction has 505 states and 742 transitions. [2020-11-30 00:05:29,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:05:29,823 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 742 transitions. [2020-11-30 00:05:29,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-11-30 00:05:29,826 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:29,826 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:29,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-11-30 00:05:29,827 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:29,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:29,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1707028326, now seen corresponding path program 1 times [2020-11-30 00:05:29,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:05:29,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681730070] [2020-11-30 00:05:29,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:05:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:05:30,012 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:05:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:05:30,121 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:05:30,245 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:05:30,245 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:05:30,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-11-30 00:05:30,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:05:30 BoogieIcfgContainer [2020-11-30 00:05:30,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:05:30,452 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:05:30,452 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:05:30,453 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:05:30,453 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:05:03" (3/4) ... [2020-11-30 00:05:30,456 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:05:30,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:05:30,458 INFO L168 Benchmark]: Toolchain (without parser) took 29246.20 ms. Allocated memory was 104.9 MB in the beginning and 299.9 MB in the end (delta: 195.0 MB). Free memory was 75.2 MB in the beginning and 171.0 MB in the end (delta: -95.8 MB). Peak memory consumption was 99.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:30,458 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory is still 45.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:05:30,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 831.15 ms. Allocated memory is still 104.9 MB. Free memory was 75.2 MB in the beginning and 62.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:30,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 192.59 ms. Allocated memory is still 104.9 MB. Free memory was 62.5 MB in the beginning and 58.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:30,460 INFO L168 Benchmark]: Boogie Preprocessor took 132.44 ms. Allocated memory is still 104.9 MB. Free memory was 58.3 MB in the beginning and 80.1 MB in the end (delta: -21.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:30,460 INFO L168 Benchmark]: RCFGBuilder took 1600.55 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 80.1 MB in the beginning and 108.5 MB in the end (delta: -28.4 MB). Peak memory consumption was 45.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:30,461 INFO L168 Benchmark]: TraceAbstraction took 26476.33 ms. Allocated memory was 142.6 MB in the beginning and 299.9 MB in the end (delta: 157.3 MB). Free memory was 107.6 MB in the beginning and 172.1 MB in the end (delta: -64.4 MB). Peak memory consumption was 92.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:30,461 INFO L168 Benchmark]: Witness Printer took 4.20 ms. Allocated memory is still 299.9 MB. Free memory was 172.1 MB in the beginning and 171.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:30,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory is still 45.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 831.15 ms. Allocated memory is still 104.9 MB. Free memory was 75.2 MB in the beginning and 62.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 192.59 ms. Allocated memory is still 104.9 MB. Free memory was 62.5 MB in the beginning and 58.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 132.44 ms. Allocated memory is still 104.9 MB. Free memory was 58.3 MB in the beginning and 80.1 MB in the end (delta: -21.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1600.55 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 80.1 MB in the beginning and 108.5 MB in the end (delta: -28.4 MB). Peak memory consumption was 45.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 26476.33 ms. Allocated memory was 142.6 MB in the beginning and 299.9 MB in the end (delta: 157.3 MB). Free memory was 107.6 MB in the beginning and 172.1 MB in the end (delta: -64.4 MB). Peak memory consumption was 92.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.20 ms. Allocated memory is still 299.9 MB. Free memory was 172.1 MB in the beginning and 171.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 1123. Possible FailurePath: [L1044] static int init = 1; [L1045] static SSL_METHOD SSLv3_server_data ; VAL [init=1, SSLv3_server_data={6:0}] [L1067] SSL *s ; [L1068] int tmp ; [L1072] s = malloc(sizeof(SSL)) [L1073] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1074] s->ctx = malloc(sizeof(SSL_CTX)) [L1075] s->session = malloc(sizeof(SSL_SESSION)) [L1076] s->state = 8464 [L1083] BUF_MEM *buf ; [L1084] unsigned long l ; [L1085] unsigned long Time ; [L1086] unsigned long tmp ; [L1087] void (*cb)() ; [L1088] long num1 ; [L1089] int ret ; [L1090] int new_state ; [L1091] int state ; [L1092] int skip ; [L1093] int got_new_session ; [L1094] int tmp___1 = __VERIFIER_nondet_int() ; [L1095] int tmp___2 = __VERIFIER_nondet_int() ; [L1096] int tmp___3 = __VERIFIER_nondet_int() ; [L1097] int tmp___4 = __VERIFIER_nondet_int() ; [L1098] int tmp___5 = __VERIFIER_nondet_int() ; [L1099] int tmp___6 = __VERIFIER_nondet_int() ; [L1100] int tmp___7 ; [L1101] long tmp___8 = __VERIFIER_nondet_long() ; [L1102] int tmp___9 = __VERIFIER_nondet_int() ; [L1103] int tmp___10 = __VERIFIER_nondet_int() ; [L1104] int blastFlag ; [L1108] blastFlag = 0 [L1109] s->hit=__VERIFIER_nondet_int () [L1110] s->state = 8464 [L1111] tmp = __VERIFIER_nondet_int() [L1112] Time = tmp [L1113] cb = (void (*)())((void *)0) [L1114] ret = -1 [L1115] skip = 0 [L1116] got_new_session = 0 [L1117] EXPR s->info_callback VAL [init=1, SSLv3_server_data={6:0}] [L1117] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1118] EXPR s->info_callback [L1118] cb = s->info_callback [L1122] EXPR s->in_handshake [L1122] s->in_handshake += 1 [L1123] COND FALSE !(tmp___1 & 12288) VAL [init=1, SSLv3_server_data={6:0}] [L1132] EXPR s->cert VAL [init=1, SSLv3_server_data={6:0}] [L1132] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1138] COND TRUE 1 VAL [init=1, SSLv3_server_data={6:0}] [L1140] EXPR s->state [L1140] state = s->state [L1141] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1141] COND FALSE !(s->state == 12292) [L1144] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1144] COND FALSE !(s->state == 16384) [L1147] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1147] COND FALSE !(s->state == 8192) [L1150] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1150] COND FALSE !(s->state == 24576) [L1153] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1153] COND FALSE !(s->state == 8195) [L1156] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1156] COND FALSE !(s->state == 8480) [L1159] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1159] COND FALSE !(s->state == 8481) [L1162] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1162] COND FALSE !(s->state == 8482) [L1165] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1165] COND TRUE s->state == 8464 [L1325] s->shutdown = 0 [L1326] ret = __VERIFIER_nondet_int() [L1327] COND TRUE blastFlag == 0 [L1328] blastFlag = 1 VAL [init=1, SSLv3_server_data={6:0}] [L1332] COND FALSE !(ret <= 0) [L1337] got_new_session = 1 [L1338] s->state = 8496 [L1339] s->init_num = 0 VAL [init=1, SSLv3_server_data={6:0}] [L1663] EXPR s->s3 [L1663] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_server_data={6:0}] [L1663] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1692] skip = 0 VAL [init=1, SSLv3_server_data={6:0}] [L1138] COND TRUE 1 VAL [init=1, SSLv3_server_data={6:0}] [L1140] EXPR s->state [L1140] state = s->state [L1141] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1141] COND FALSE !(s->state == 12292) [L1144] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1144] COND FALSE !(s->state == 16384) [L1147] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1147] COND FALSE !(s->state == 8192) [L1150] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1150] COND FALSE !(s->state == 24576) [L1153] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1153] COND FALSE !(s->state == 8195) [L1156] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1156] COND FALSE !(s->state == 8480) [L1159] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1159] COND FALSE !(s->state == 8481) [L1162] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1162] COND FALSE !(s->state == 8482) [L1165] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1165] COND FALSE !(s->state == 8464) [L1168] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1168] COND FALSE !(s->state == 8465) [L1171] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1171] COND FALSE !(s->state == 8466) [L1174] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1174] COND TRUE s->state == 8496 [L1343] ret = __VERIFIER_nondet_int() [L1344] COND TRUE blastFlag == 1 [L1345] blastFlag = 2 VAL [init=1, SSLv3_server_data={6:0}] [L1349] COND FALSE !(ret <= 0) [L1354] s->hit VAL [init=1, SSLv3_server_data={6:0}] [L1354] COND TRUE s->hit [L1355] s->state = 8656 VAL [init=1, SSLv3_server_data={6:0}] [L1359] s->init_num = 0 VAL [init=1, SSLv3_server_data={6:0}] [L1663] EXPR s->s3 [L1663] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_server_data={6:0}] [L1663] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1692] skip = 0 VAL [init=1, SSLv3_server_data={6:0}] [L1138] COND TRUE 1 VAL [init=1, SSLv3_server_data={6:0}] [L1140] EXPR s->state [L1140] state = s->state [L1141] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1141] COND FALSE !(s->state == 12292) [L1144] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1144] COND FALSE !(s->state == 16384) [L1147] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1147] COND FALSE !(s->state == 8192) [L1150] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1150] COND FALSE !(s->state == 24576) [L1153] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1153] COND FALSE !(s->state == 8195) [L1156] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1156] COND FALSE !(s->state == 8480) [L1159] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1159] COND FALSE !(s->state == 8481) [L1162] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1162] COND FALSE !(s->state == 8482) [L1165] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1165] COND FALSE !(s->state == 8464) [L1168] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1168] COND FALSE !(s->state == 8465) [L1171] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1171] COND FALSE !(s->state == 8466) [L1174] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1174] COND FALSE !(s->state == 8496) [L1177] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1177] COND FALSE !(s->state == 8497) [L1180] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1180] COND FALSE !(s->state == 8512) [L1183] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1183] COND FALSE !(s->state == 8513) [L1186] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1186] COND FALSE !(s->state == 8528) [L1189] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1189] COND FALSE !(s->state == 8529) [L1192] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1192] COND FALSE !(s->state == 8544) [L1195] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1195] COND FALSE !(s->state == 8545) [L1198] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1198] COND FALSE !(s->state == 8560) [L1201] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1201] COND FALSE !(s->state == 8561) [L1204] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1204] COND FALSE !(s->state == 8448) [L1207] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1207] COND FALSE !(s->state == 8576) [L1210] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1210] COND FALSE !(s->state == 8577) [L1213] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1213] COND FALSE !(s->state == 8592) [L1216] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1216] COND FALSE !(s->state == 8593) [L1219] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1219] COND FALSE !(s->state == 8608) [L1222] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1222] COND FALSE !(s->state == 8609) [L1225] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1225] COND FALSE !(s->state == 8640) [L1228] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1228] COND FALSE !(s->state == 8641) [L1231] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1231] COND TRUE s->state == 8656 [L1552] EXPR s->session [L1552] EXPR s->s3 [L1552] EXPR (s->s3)->tmp.new_cipher [L1552] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1553] COND FALSE !(! tmp___9) [L1559] ret = __VERIFIER_nondet_int() [L1560] COND TRUE blastFlag == 2 [L1561] blastFlag = 4 VAL [init=1, SSLv3_server_data={6:0}] [L1569] COND FALSE !(ret <= 0) [L1574] s->state = 8672 [L1575] s->init_num = 0 VAL [init=1, SSLv3_server_data={6:0}] [L1576] COND FALSE !(! tmp___10) VAL [init=1, SSLv3_server_data={6:0}] [L1663] EXPR s->s3 [L1663] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_server_data={6:0}] [L1663] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1692] skip = 0 VAL [init=1, SSLv3_server_data={6:0}] [L1138] COND TRUE 1 VAL [init=1, SSLv3_server_data={6:0}] [L1140] EXPR s->state [L1140] state = s->state [L1141] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1141] COND FALSE !(s->state == 12292) [L1144] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1144] COND FALSE !(s->state == 16384) [L1147] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1147] COND FALSE !(s->state == 8192) [L1150] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1150] COND FALSE !(s->state == 24576) [L1153] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1153] COND FALSE !(s->state == 8195) [L1156] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1156] COND FALSE !(s->state == 8480) [L1159] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1159] COND FALSE !(s->state == 8481) [L1162] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1162] COND FALSE !(s->state == 8482) [L1165] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1165] COND FALSE !(s->state == 8464) [L1168] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1168] COND FALSE !(s->state == 8465) [L1171] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1171] COND FALSE !(s->state == 8466) [L1174] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1174] COND FALSE !(s->state == 8496) [L1177] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1177] COND FALSE !(s->state == 8497) [L1180] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1180] COND FALSE !(s->state == 8512) [L1183] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1183] COND FALSE !(s->state == 8513) [L1186] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1186] COND FALSE !(s->state == 8528) [L1189] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1189] COND FALSE !(s->state == 8529) [L1192] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1192] COND FALSE !(s->state == 8544) [L1195] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1195] COND FALSE !(s->state == 8545) [L1198] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1198] COND FALSE !(s->state == 8560) [L1201] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1201] COND FALSE !(s->state == 8561) [L1204] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1204] COND FALSE !(s->state == 8448) [L1207] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1207] COND FALSE !(s->state == 8576) [L1210] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1210] COND FALSE !(s->state == 8577) [L1213] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1213] COND FALSE !(s->state == 8592) [L1216] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1216] COND FALSE !(s->state == 8593) [L1219] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1219] COND FALSE !(s->state == 8608) [L1222] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1222] COND FALSE !(s->state == 8609) [L1225] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1225] COND FALSE !(s->state == 8640) [L1228] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1228] COND FALSE !(s->state == 8641) [L1231] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1231] COND FALSE !(s->state == 8656) [L1234] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1234] COND FALSE !(s->state == 8657) [L1237] EXPR s->state VAL [init=1, SSLv3_server_data={6:0}] [L1237] COND TRUE s->state == 8672 [L1585] ret = __VERIFIER_nondet_int() [L1586] COND TRUE blastFlag == 4 VAL [init=1, SSLv3_server_data={6:0}] [L3] __assert_fail("0", "s3_srvr.blast.04.i.cil.c", 3, "reach_error") VAL [init=1, SSLv3_server_data={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.1s, OverallIterations: 41, TraceHistogramMax: 4, AutomataDifference: 20.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7516 SDtfs, 2089 SDslu, 10975 SDs, 0 SdLazy, 6884 SolverSat, 339 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 80 SyntacticMatches, 29 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=505occurred in iteration=40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 40 MinimizatonAttempts, 914 StatesRemovedByMinimization, 37 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 3500 NumberOfCodeBlocks, 3500 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 3335 ConstructedInterpolants, 0 QuantifiedInterpolants, 763149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 40 InterpolantComputations, 40 PerfectInterpolantSequences, 1736/1736 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:05:33,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:05:33,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:05:33,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:05:33,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:05:33,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:05:33,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:05:33,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:05:33,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:05:33,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:05:33,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:05:33,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:05:33,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:05:33,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:05:33,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:05:33,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:05:33,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:05:33,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:05:33,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:05:33,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:05:33,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:05:33,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:05:33,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:05:33,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:05:33,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:05:33,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:05:33,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:05:33,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:05:33,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:05:33,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:05:33,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:05:33,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:05:33,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:05:33,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:05:33,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:05:33,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:05:33,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:05:33,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:05:33,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:05:33,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:05:33,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:05:33,743 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:05:33,807 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:05:33,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:05:33,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:05:33,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:05:33,815 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:05:33,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:05:33,816 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:05:33,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:05:33,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:05:33,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:05:33,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:05:33,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:05:33,819 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:05:33,819 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:05:33,819 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:05:33,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:05:33,820 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:05:33,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:05:33,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:05:33,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:05:33,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:05:33,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:05:33,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:05:33,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:05:33,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:05:33,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:05:33,823 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:05:33,823 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:05:33,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:05:33,824 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:05:33,824 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:05:33,824 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ff34e80d9f0f73b7bbd7bbe2f389b5cf58f461c [2020-11-30 00:05:34,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:05:34,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:05:34,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:05:34,417 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:05:34,417 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:05:34,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/../../sv-benchmarks/c/openssl/s3_srvr.blast.04.i.cil.c [2020-11-30 00:05:34,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/data/edfeb24b3/914840131ff4461bb71cfb2c0e80157b/FLAGd8f0c073e [2020-11-30 00:05:35,393 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:05:35,395 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/sv-benchmarks/c/openssl/s3_srvr.blast.04.i.cil.c [2020-11-30 00:05:35,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/data/edfeb24b3/914840131ff4461bb71cfb2c0e80157b/FLAGd8f0c073e [2020-11-30 00:05:35,555 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/data/edfeb24b3/914840131ff4461bb71cfb2c0e80157b [2020-11-30 00:05:35,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:05:35,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:05:35,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:05:35,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:05:35,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:05:35,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:05:35" (1/1) ... [2020-11-30 00:05:35,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3b1bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:35, skipping insertion in model container [2020-11-30 00:05:35,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:05:35" (1/1) ... [2020-11-30 00:05:35,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:05:35,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:05:36,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:05:36,349 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:05:36,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:05:36,671 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:05:36,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:36 WrapperNode [2020-11-30 00:05:36,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:05:36,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:05:36,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:05:36,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:05:36,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:36" (1/1) ... [2020-11-30 00:05:36,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:36" (1/1) ... [2020-11-30 00:05:36,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:05:36,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:05:36,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:05:36,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:05:36,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:36" (1/1) ... [2020-11-30 00:05:36,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:36" (1/1) ... [2020-11-30 00:05:36,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:36" (1/1) ... [2020-11-30 00:05:36,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:36" (1/1) ... [2020-11-30 00:05:36,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:36" (1/1) ... [2020-11-30 00:05:36,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:36" (1/1) ... [2020-11-30 00:05:36,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:36" (1/1) ... [2020-11-30 00:05:36,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:05:37,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:05:37,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:05:37,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:05:37,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:05:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:05:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 00:05:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:05:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 00:05:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 00:05:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:05:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:05:37,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:05:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 00:05:37,503 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 00:05:41,064 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-11-30 00:05:41,064 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-11-30 00:05:41,076 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:05:41,076 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:05:41,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:05:41 BoogieIcfgContainer [2020-11-30 00:05:41,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:05:41,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:05:41,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:05:41,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:05:41,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:05:35" (1/3) ... [2020-11-30 00:05:41,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb821f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:05:41, skipping insertion in model container [2020-11-30 00:05:41,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:05:36" (2/3) ... [2020-11-30 00:05:41,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb821f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:05:41, skipping insertion in model container [2020-11-30 00:05:41,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:05:41" (3/3) ... [2020-11-30 00:05:41,089 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.04.i.cil.c [2020-11-30 00:05:41,104 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:05:41,110 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:05:41,127 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:05:41,162 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:05:41,162 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:05:41,162 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:05:41,163 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:05:41,163 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:05:41,163 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:05:41,163 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:05:41,164 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:05:41,185 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-11-30 00:05:41,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-30 00:05:41,197 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:41,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:41,198 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:41,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:41,206 INFO L82 PathProgramCache]: Analyzing trace with hash 522836684, now seen corresponding path program 1 times [2020-11-30 00:05:41,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:05:41,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22336055] [2020-11-30 00:05:41,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 00:05:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:41,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:05:41,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:05:41,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:41,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:05:41,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:41,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22336055] [2020-11-30 00:05:41,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:41,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 00:05:41,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482576319] [2020-11-30 00:05:41,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:41,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:05:41,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:41,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:41,762 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 4 states. [2020-11-30 00:05:42,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:42,118 INFO L93 Difference]: Finished difference Result 541 states and 918 transitions. [2020-11-30 00:05:42,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:42,122 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-11-30 00:05:42,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:42,152 INFO L225 Difference]: With dead ends: 541 [2020-11-30 00:05:42,152 INFO L226 Difference]: Without dead ends: 366 [2020-11-30 00:05:42,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:42,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-11-30 00:05:42,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2020-11-30 00:05:42,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-11-30 00:05:42,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 556 transitions. [2020-11-30 00:05:42,299 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 556 transitions. Word has length 45 [2020-11-30 00:05:42,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:42,301 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 556 transitions. [2020-11-30 00:05:42,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:42,301 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 556 transitions. [2020-11-30 00:05:42,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-11-30 00:05:42,320 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:42,321 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:42,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:05:42,537 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:42,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:42,539 INFO L82 PathProgramCache]: Analyzing trace with hash 577204179, now seen corresponding path program 1 times [2020-11-30 00:05:42,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:05:42,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801574998] [2020-11-30 00:05:42,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 00:05:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:05:42,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:05:42,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:05:42,937 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:42,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:05:42,995 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:05:42,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801574998] [2020-11-30 00:05:42,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:05:42,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 00:05:42,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556569501] [2020-11-30 00:05:43,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:05:43,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:05:43,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:05:43,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:43,006 INFO L87 Difference]: Start difference. First operand 366 states and 556 transitions. Second operand 4 states. [2020-11-30 00:05:43,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:05:43,485 INFO L93 Difference]: Finished difference Result 839 states and 1282 transitions. [2020-11-30 00:05:43,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:05:43,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2020-11-30 00:05:43,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:05:43,497 INFO L225 Difference]: With dead ends: 839 [2020-11-30 00:05:43,497 INFO L226 Difference]: Without dead ends: 600 [2020-11-30 00:05:43,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:05:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-11-30 00:05:43,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2020-11-30 00:05:43,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2020-11-30 00:05:43,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 910 transitions. [2020-11-30 00:05:43,559 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 910 transitions. Word has length 103 [2020-11-30 00:05:43,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:05:43,560 INFO L481 AbstractCegarLoop]: Abstraction has 600 states and 910 transitions. [2020-11-30 00:05:43,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:05:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 910 transitions. [2020-11-30 00:05:43,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-11-30 00:05:43,563 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:05:43,564 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:05:43,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:05:43,786 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:05:43,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:05:43,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1707028326, now seen corresponding path program 1 times [2020-11-30 00:05:43,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:05:43,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242876733] [2020-11-30 00:05:43,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 00:05:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:05:44,418 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:05:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:05:44,963 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:05:45,263 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-30 00:05:45,271 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:05:45,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 00:05:45,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:05:45 BoogieIcfgContainer [2020-11-30 00:05:45,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:05:45,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:05:45,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:05:45,704 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:05:45,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:05:41" (3/4) ... [2020-11-30 00:05:45,707 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:05:45,930 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_74cf9b6e-cdb6-4879-8a8d-6613c722946e/bin/uautomizer/witness.graphml [2020-11-30 00:05:45,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:05:45,933 INFO L168 Benchmark]: Toolchain (without parser) took 10371.53 ms. Allocated memory was 58.7 MB in the beginning and 123.7 MB in the end (delta: 65.0 MB). Free memory was 35.7 MB in the beginning and 73.2 MB in the end (delta: -37.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:45,934 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 58.7 MB. Free memory was 41.3 MB in the beginning and 41.3 MB in the end (delta: 38.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:05:45,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1101.30 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.4 MB in the beginning and 47.7 MB in the end (delta: -12.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:45,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 160.80 ms. Allocated memory is still 71.3 MB. Free memory was 47.7 MB in the beginning and 43.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:45,936 INFO L168 Benchmark]: Boogie Preprocessor took 161.65 ms. Allocated memory is still 71.3 MB. Free memory was 43.2 MB in the beginning and 36.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:45,937 INFO L168 Benchmark]: RCFGBuilder took 4079.23 ms. Allocated memory was 71.3 MB in the beginning and 102.8 MB in the end (delta: 31.5 MB). Free memory was 36.3 MB in the beginning and 56.1 MB in the end (delta: -19.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:45,937 INFO L168 Benchmark]: TraceAbstraction took 4621.38 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 56.1 MB in the beginning and 90.1 MB in the end (delta: -34.0 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:45,938 INFO L168 Benchmark]: Witness Printer took 227.87 ms. Allocated memory is still 123.7 MB. Free memory was 90.1 MB in the beginning and 73.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:05:45,940 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 58.7 MB. Free memory was 41.3 MB in the beginning and 41.3 MB in the end (delta: 38.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1101.30 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.4 MB in the beginning and 47.7 MB in the end (delta: -12.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 160.80 ms. Allocated memory is still 71.3 MB. Free memory was 47.7 MB in the beginning and 43.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 161.65 ms. Allocated memory is still 71.3 MB. Free memory was 43.2 MB in the beginning and 36.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4079.23 ms. Allocated memory was 71.3 MB in the beginning and 102.8 MB in the end (delta: 31.5 MB). Free memory was 36.3 MB in the beginning and 56.1 MB in the end (delta: -19.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4621.38 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 56.1 MB in the beginning and 90.1 MB in the end (delta: -34.0 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. * Witness Printer took 227.87 ms. Allocated memory is still 123.7 MB. Free memory was 90.1 MB in the beginning and 73.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1044] static int init = 1; [L1045] static SSL_METHOD SSLv3_server_data ; VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1067] SSL *s ; [L1068] int tmp ; [L1072] s = malloc(sizeof(SSL)) [L1073] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1074] s->ctx = malloc(sizeof(SSL_CTX)) [L1075] s->session = malloc(sizeof(SSL_SESSION)) [L1076] s->state = 8464 [L1083] BUF_MEM *buf ; [L1084] unsigned long l ; [L1085] unsigned long Time ; [L1086] unsigned long tmp ; [L1087] void (*cb)() ; [L1088] long num1 ; [L1089] int ret ; [L1090] int new_state ; [L1091] int state ; [L1092] int skip ; [L1093] int got_new_session ; [L1094] int tmp___1 = __VERIFIER_nondet_int() ; [L1095] int tmp___2 = __VERIFIER_nondet_int() ; [L1096] int tmp___3 = __VERIFIER_nondet_int() ; [L1097] int tmp___4 = __VERIFIER_nondet_int() ; [L1098] int tmp___5 = __VERIFIER_nondet_int() ; [L1099] int tmp___6 = __VERIFIER_nondet_int() ; [L1100] int tmp___7 ; [L1101] long tmp___8 = __VERIFIER_nondet_long() ; [L1102] int tmp___9 = __VERIFIER_nondet_int() ; [L1103] int tmp___10 = __VERIFIER_nondet_int() ; [L1104] int blastFlag ; [L1108] blastFlag = 0 [L1109] s->hit=__VERIFIER_nondet_int () [L1110] s->state = 8464 [L1111] tmp = __VERIFIER_nondet_int() [L1112] Time = tmp [L1113] cb = (void (*)())((void *)0) [L1114] ret = -1 [L1115] skip = 0 [L1116] got_new_session = 0 [L1117] EXPR s->info_callback VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1117] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1118] EXPR s->info_callback [L1118] cb = s->info_callback [L1122] EXPR s->in_handshake [L1122] s->in_handshake += 1 [L1123] COND FALSE !(tmp___1 & 12288) VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1132] EXPR s->cert VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1132] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1138] COND TRUE 1 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1140] EXPR s->state [L1140] state = s->state [L1141] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1141] COND FALSE !(s->state == 12292) [L1144] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1144] COND FALSE !(s->state == 16384) [L1147] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1147] COND FALSE !(s->state == 8192) [L1150] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1150] COND FALSE !(s->state == 24576) [L1153] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1153] COND FALSE !(s->state == 8195) [L1156] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1156] COND FALSE !(s->state == 8480) [L1159] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1159] COND FALSE !(s->state == 8481) [L1162] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1162] COND FALSE !(s->state == 8482) [L1165] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1165] COND TRUE s->state == 8464 [L1325] s->shutdown = 0 [L1326] ret = __VERIFIER_nondet_int() [L1327] COND TRUE blastFlag == 0 [L1328] blastFlag = 1 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1332] COND FALSE !(ret <= 0) [L1337] got_new_session = 1 [L1338] s->state = 8496 [L1339] s->init_num = 0 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1663] EXPR s->s3 [L1663] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1663] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1692] skip = 0 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1138] COND TRUE 1 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1140] EXPR s->state [L1140] state = s->state [L1141] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1141] COND FALSE !(s->state == 12292) [L1144] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1144] COND FALSE !(s->state == 16384) [L1147] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1147] COND FALSE !(s->state == 8192) [L1150] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1150] COND FALSE !(s->state == 24576) [L1153] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1153] COND FALSE !(s->state == 8195) [L1156] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1156] COND FALSE !(s->state == 8480) [L1159] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1159] COND FALSE !(s->state == 8481) [L1162] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1162] COND FALSE !(s->state == 8482) [L1165] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1165] COND FALSE !(s->state == 8464) [L1168] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1168] COND FALSE !(s->state == 8465) [L1171] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1171] COND FALSE !(s->state == 8466) [L1174] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1174] COND TRUE s->state == 8496 [L1343] ret = __VERIFIER_nondet_int() [L1344] COND TRUE blastFlag == 1 [L1345] blastFlag = 2 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1349] COND FALSE !(ret <= 0) [L1354] s->hit VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1354] COND TRUE s->hit [L1355] s->state = 8656 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1359] s->init_num = 0 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1663] EXPR s->s3 [L1663] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1663] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1692] skip = 0 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1138] COND TRUE 1 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1140] EXPR s->state [L1140] state = s->state [L1141] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1141] COND FALSE !(s->state == 12292) [L1144] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1144] COND FALSE !(s->state == 16384) [L1147] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1147] COND FALSE !(s->state == 8192) [L1150] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1150] COND FALSE !(s->state == 24576) [L1153] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1153] COND FALSE !(s->state == 8195) [L1156] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1156] COND FALSE !(s->state == 8480) [L1159] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1159] COND FALSE !(s->state == 8481) [L1162] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1162] COND FALSE !(s->state == 8482) [L1165] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1165] COND FALSE !(s->state == 8464) [L1168] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1168] COND FALSE !(s->state == 8465) [L1171] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1171] COND FALSE !(s->state == 8466) [L1174] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1174] COND FALSE !(s->state == 8496) [L1177] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1177] COND FALSE !(s->state == 8497) [L1180] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1180] COND FALSE !(s->state == 8512) [L1183] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1183] COND FALSE !(s->state == 8513) [L1186] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1186] COND FALSE !(s->state == 8528) [L1189] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1189] COND FALSE !(s->state == 8529) [L1192] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1192] COND FALSE !(s->state == 8544) [L1195] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1195] COND FALSE !(s->state == 8545) [L1198] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1198] COND FALSE !(s->state == 8560) [L1201] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1201] COND FALSE !(s->state == 8561) [L1204] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1204] COND FALSE !(s->state == 8448) [L1207] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1207] COND FALSE !(s->state == 8576) [L1210] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1210] COND FALSE !(s->state == 8577) [L1213] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1213] COND FALSE !(s->state == 8592) [L1216] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1216] COND FALSE !(s->state == 8593) [L1219] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1219] COND FALSE !(s->state == 8608) [L1222] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1222] COND FALSE !(s->state == 8609) [L1225] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1225] COND FALSE !(s->state == 8640) [L1228] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1228] COND FALSE !(s->state == 8641) [L1231] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1231] COND TRUE s->state == 8656 [L1552] EXPR s->session [L1552] EXPR s->s3 [L1552] EXPR (s->s3)->tmp.new_cipher [L1552] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1553] COND FALSE !(! tmp___9) [L1559] ret = __VERIFIER_nondet_int() [L1560] COND TRUE blastFlag == 2 [L1561] blastFlag = 4 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1569] COND FALSE !(ret <= 0) [L1574] s->state = 8672 [L1575] s->init_num = 0 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1576] COND FALSE !(! tmp___10) VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1663] EXPR s->s3 [L1663] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1663] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1692] skip = 0 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1138] COND TRUE 1 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1140] EXPR s->state [L1140] state = s->state [L1141] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1141] COND FALSE !(s->state == 12292) [L1144] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1144] COND FALSE !(s->state == 16384) [L1147] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1147] COND FALSE !(s->state == 8192) [L1150] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1150] COND FALSE !(s->state == 24576) [L1153] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1153] COND FALSE !(s->state == 8195) [L1156] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1156] COND FALSE !(s->state == 8480) [L1159] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1159] COND FALSE !(s->state == 8481) [L1162] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1162] COND FALSE !(s->state == 8482) [L1165] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1165] COND FALSE !(s->state == 8464) [L1168] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1168] COND FALSE !(s->state == 8465) [L1171] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1171] COND FALSE !(s->state == 8466) [L1174] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1174] COND FALSE !(s->state == 8496) [L1177] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1177] COND FALSE !(s->state == 8497) [L1180] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1180] COND FALSE !(s->state == 8512) [L1183] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1183] COND FALSE !(s->state == 8513) [L1186] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1186] COND FALSE !(s->state == 8528) [L1189] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1189] COND FALSE !(s->state == 8529) [L1192] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1192] COND FALSE !(s->state == 8544) [L1195] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1195] COND FALSE !(s->state == 8545) [L1198] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1198] COND FALSE !(s->state == 8560) [L1201] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1201] COND FALSE !(s->state == 8561) [L1204] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1204] COND FALSE !(s->state == 8448) [L1207] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1207] COND FALSE !(s->state == 8576) [L1210] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1210] COND FALSE !(s->state == 8577) [L1213] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1213] COND FALSE !(s->state == 8592) [L1216] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1216] COND FALSE !(s->state == 8593) [L1219] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1219] COND FALSE !(s->state == 8608) [L1222] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1222] COND FALSE !(s->state == 8609) [L1225] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1225] COND FALSE !(s->state == 8640) [L1228] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1228] COND FALSE !(s->state == 8641) [L1231] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1231] COND FALSE !(s->state == 8656) [L1234] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1234] COND FALSE !(s->state == 8657) [L1237] EXPR s->state VAL [init=1, SSLv3_server_data={-2147483617:0}] [L1237] COND TRUE s->state == 8672 [L1585] ret = __VERIFIER_nondet_int() [L1586] COND TRUE blastFlag == 4 VAL [init=1, SSLv3_server_data={-2147483617:0}] [L3] __assert_fail("0", "s3_srvr.blast.04.i.cil.c", 3, "reach_error") VAL [init=1, SSLv3_server_data={-2147483617:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.3s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 587 SDtfs, 845 SDslu, 786 SDs, 0 SdLazy, 48 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 292 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=600occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 273 NumberOfCodeBlocks, 273 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 74336 SizeOfPredicates, 1 NumberOfNonLiveVariables, 427 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 116/116 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...